20411619 has 8 divisors (see below), whose sum is σ = 27236880. Its totient is φ = 13597056.

The previous prime is 20411593. The next prime is 20411623. The reversal of 20411619 is 91611402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20411619 - 2⁹ = 20411107 is a prime.

It is a super-2 number, since 2×20411619² = 833268380402322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20411639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4639 + ... + 7895.

It is an arithmetic number, because the mean of its divisors is an integer number (3404610).

Almost surely, 2^20411619 is an apocalyptic number.

20411619 is a deficient number, since it is larger than the sum of its proper divisors (6825261).

20411619 is a wasteful number, since it uses less digits than its factorization.

20411619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5349.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 20411619 is about 4517.9219780780. The cubic root of 20411619 is about 273.2913070755.

The spelling of 20411619 in words is "twenty million, four hundred eleven thousand, six hundred nineteen".